Finding the Fourth Proportional to 161,636.80, 242,455.28 and 43,305.12
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Solution
The fourth proportional to 161,636.80, 242,455.28 and 43,305.12 is: 64,957.70
Step by Step Solution
- Step 1: Write the proportion equation
161,636.80 : 242,455.28 = 43,305.12 : x - Step 2: Convert to fraction form
161,636.80/242,455.28 = 43,305.12/x - Step 3: Cross multiply
161,636.80x = 242,455.28 × 43,305.12 - Step 4: Simplify right side
161,636.80x = 10,499,554,995.03 - Step 5: Solve for x
x = 10,499,554,995.03/161,636.80 - Step 6: Final answer
x = 64,957.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.